CN103252013B - Puncturing sheath for aortic vessel lumen interventional surgery - Google Patents

Abstract

The invention discloses a puncturing sheath for an aortic vessel lumen interventional surgery, which comprises a sheath tube and a sheath handle, wherein an annular air bag which blocks an inner wall of the sheath tube after inflated is arranged on the inner wall of the sheath tube; a pore passage capable of elastically wrapping inlet and outlet instruments is formed in the center of the annular air bag; the annular air bag is connected with an inflation device by an air bag catheter; and an inflation locking device is arranged on the inflation device. According to the puncturing sheath, the air bag is matched with the inflation device, so that the surgical instruments can pass through a membrane hole in the center of the air bag conveniently; the air bag can bear pressure of an artery; no blood leakage is ensured; a convenient instrument is provided for an aortic endovascular surgery; a surgical procedure is facilitated; and the surgery is reliable.

Description

Aortic vascular interventional surgery puncture sheath

technical field

The invention relates to an instrument for interventional surgery, in particular to a puncture sheath for aortic vessel cavity interventional surgery; in particular, a large-size blood vessel puncture sheath with an internal blocking balloon.

Background technique

Endovascular aortic repair is the current development direction for the treatment of various aortic diseases. With the development of interventional technology and equipment, endovascular aortic repair has replaced traditional open surgery and has become the mainstream surgical method.

Endovascular aortic surgery is different from common vascular interventional surgery. Because the aortic stent delivery system is relatively thick (generally greater than 20F), the vascular puncture sheath is generally not used. Instead, an inguinal incision is made to expose the femoral artery and the femoral artery is cut transversely. After the introduction of the guide wire catheter for positioning, the stent delivery system is directly inserted into the femoral artery incision, and the stent is placed at the lesion and released. However, in this method, there is no vascular puncture sheath to protect the blood vessels, which makes it difficult to control bleeding during the operation. Moreover, the stent delivery sheath is in direct contact with the femoral artery, causing more friction, making stent delivery difficult. At the same time, it will damage the intima of the vessel, making it difficult to suture the vessel during the operation, and easily causing postoperative vascular stenosis, thrombosis, and lower extremity arterial ischemia. complication.

Most of the commonly used clinical puncture sheaths are below 10F and are used for small and medium blood vessel interventional operations. There are almost no large vascular sheaths used for interventional surgery of large blood vessels. A few clinically used vascular sheaths are not effective, not tightly sealed, and prone to blood leakage. Occasionally, vascular sheaths with a sealing system have complex structures. Inconvenient, but there is still a greater risk of bleeding.

At present, there is no easy-to-use large-scale vascular sheath with blood blocking function, which makes the operator feel powerless and affects the operation and operation quality of the operation.

The applicant proposes CN201210020329 vascular puncture occlusion sheath with balloon, the balloon is located on the outer diameter of the vascular puncture occlusion sheath, and is used for blood vessels with inflatable (air) balloons used in artificial vascular bypass surgery The puncture blocking sheath is used to ensure good visual field and hemostatic effect when operating on artificial blood vessels and other operations; but it is not suitable for endovascular repair of aorta. Endovascular repair of aortic vessels most requires a large-sized vascular puncture sheath with an excellent puncture sheath hemostatic device. The existing puncture sheath hemostatic device below 10F is only a layer of elastic membrane at the end of the puncture sheath, which cannot withstand large diameters. (5-9mm) blood pressure.

Contents of the invention

The purpose of the invention is to: propose a large-diameter blood vessel puncture sheath with a blood-blocking air bag, through the design of the air bag and the design of the inflation device, the present invention can be used for aortic intracavitary surgery, and the large-diameter blood vessel puncture sheath can make all surgical operations They are all located in the blood vessel (typically stent delivery and placement), which is convenient for operation and reliable in operation; the purpose of the present invention is also to propose a vascular puncture sheath with the outlet of the cleaning tube placed at the front end, which is more effective in cooperation with the present invention.

The technical scheme of the present invention is: a puncture sheath for interventional surgery in the aortic vessel cavity, comprising a sheath tube 1 and a sheath handle 5, the inner wall of the sheath tube 1 is provided with an annular air bag 7 that blocks the inner wall of the sheath tube 1 after inflation, and the center of the annular air bag 7 has an elastic package The hole for entering and exiting the instrument.

Further, the annular airbag 7 is connected to the inflation device 8 through the airbag catheter 9 .

Further, the inflatable device 8 is provided with an inflatable locking device 8-1.

Further, the outlet 3 of the infusion tube in the sheath tube 1, the inner infusion tube 4, the outer infusion tube 6, the annular air bag 7, the inflation device 8, the inflation locking device 8-1, the balloon catheter 9,

Further, the annular airbag 7 is formed by winding the tubular airbag 7 into an annular airbag structure, and the annular airbag has folded edges 10; the central film 11 is formed by overlapping the latex edges.

The annular balloon 7 is connected to the balloon catheter 9 through the balloon catheter connector 12, and the balloon catheter 9 can be placed outside the sheath tube 1 or be the inner cavity of the sheath tube.

Further, the inner cavity of the sheath tube 1 is provided with an inner infusion tube, the outlet 3 of the inner infusion tube is located at the front end of the annular air bag, and the inner infusion tube is connected from the sheath handle 5 .

The pipe diameter of the puncture sheath of the present invention is more than 14F, even 24F, which is convenient to be prepared as a multi-lumen tube containing an infusion tube.

The beneficial effects of the invention are: through the matching of the air bag and the inflatable device, the surgical instrument can conveniently pass through the membrane hole in the center of the air bag, and the air bag can withstand the pressure of the artery to ensure no bleeding. Provide a convenient instrument for intra-aortic surgery, which is convenient for operation and reliable in operation; the outlet of the cleaning or injection liquid tube is placed at the front of the vascular puncture sheath, which is also convenient for injection or cleaning during the operation (it can be slightly loosened during cleaning) open the airbag). The present invention is typically used for interventional surgery of the aortic vessel cavity. The femoral artery is cut transversely, and after the guide wire catheter is introduced for positioning, the stent delivery system is directly inserted into the femoral artery incision, and the stent is placed on the lesion site for release. The invention protects the blood vessel through the blood vessel puncture sheath, and the intraoperative bleeding is easy to control. Moreover, the stent delivery sheath is not in direct contact with the femoral artery, and the stent delivery is easy without damaging the intima of the blood vessel, and it is not easy to cause complications such as postoperative vascular stenosis, thrombosis, and lower extremity arterial ischemia. The large-size blood vessel puncture sheath with the inner blocking balloon of the present invention has a good trial effect in operation and has achieved the expected effect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of the annular airbag.

Detailed ways

As shown in Figure 1-2, the sheath tube 1, the inner diameter of the infusion tube 2, the sheath handle 5, the outlet of the inner infusion tube 3, the inner infusion tube 4, the outer infusion tube 6, the annular air bag 7, the inflation device 8, and the inflation locking device 8 -1. Balloon catheter 9 , folded edge 10 , central membrane 11 , balloon catheter connector 12 . The sheath tube is made of stainless steel or hard polymer material, and the balloon is made of latex or elastic rubber-plastic composite material.

In the present invention, an annular air bag 7 is built in the sheath tube of the traditional vascular puncture sheath. The annular air bag 7 is made of latex, and is inflated by connecting the inflation device 8 (any air source that can provide positive pressure for a mechanical pump, or a manual syringe). The locking device 8-1 can be a shut-off valve of the positive pressure air source pipeline, or a core-pulling fixing device of the syringe.

The annular airbag 7 can also be of irregular shape. For example, in the structure in which the tubular airbag 7 is wound into an annular airbag, passages for entering and exiting instruments (with the functions of sealing wrapping and elastic sealing) can be provided at the overlap of the tubular airbags 7 . It can also be a structure similar to a swimming ring, but there is a closed membrane in the center (with the function of airtight wrapping and elastic sealing), which can be used for the entry and closure of instruments.

When the vascular sheath of the present invention is performing an operation, the degree of sealing can be adjusted when the sheath tube needs to inject medicinal liquid or cleaning liquid.

The annular balloon is connected with the balloon catheter through the balloon catheter connector, and the balloon catheter is placed outside the sheath 1 or is the inner cavity of the sheath.

The embodiments of the present invention do not limit the present invention, and any simple improvement based on the present invention does not exceed the protection scope of the present invention.

Claims (3)

1. aortic blood tube chamber intervene operation puncture sheath, is characterized in that comprising sheath pipe, sheath handle, and sheath inside pipe wall is equipped with the rear annular air-pocket that stops up sheath inside pipe wall of inflation, and the central authorities of annular air-pocket have the duct of elastic packaging turnover apparatus; Annular air-pocket connects aerating device by balloon catheter; Aerating device is provided with inflation locking device; The inner chamber of sheath pipe is provided with interior tube for transfusion, and the outlet of interior tube for transfusion is positioned at the front end of annular air-pocket position, and interior tube for transfusion connects from sheath handle; More than the caliber 14F of puncture sheath, be prepared into the multi-lumen tube containing tube for transfusion; There is closing membrane in annular air-pocket central authorities.

2. aortic blood tube chamber intervene operation puncture sheath according to claim 1, is characterized in that, annular air-pocket is turned to the structure of annular air-pocket by tubulose air bag, turn to annular air-pocket and have folded limit; The central closing membrane that the limit of latex builds up.

3. aortic blood tube chamber intervene operation puncture sheath according to claim 1, is characterized in that annular air-pocket passes through balloon catheter union joint and is connected with balloon catheter, and balloon catheter is placed in sheath outside.